Oval|Lab Grown|IGI

4.01ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG685589270

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG685589270

Diamond specifications and retailer prices

From $495 USD
£390 GBP
As of October 30, 2026
Save $1,689 USD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,380 USD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 4.01ct lab-grown oval diamond

This 4.01ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685589270 or 685589270. Listed at 14 retailers as of October 29, 2026, with a 341% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.01
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685589270
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.37 mm7.13 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685589270
Side View
Table 62.0%Crown 37.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,380 USD|Low: $458 USD|High: $3,380 USD|Avg: $1,057 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 14$458 USD
Retailer 2$495 USD
Retailer 5$534 USD
Retailer 12$592 USD
Retailer 13$592 USD
Retailer 9$655 USD
Retailer 11$869 USD
Retailer 3$924 USD
Retailer 6$926 USD
Retailer 7$982 USD
Retailer 10$1,590 USD
Retailer 4$1,902 USD
Retailer 8$2,184 USD
Brilliant Earth$3,380 USD

43 data points across 14 retailers

14 retailers$495 USD to $2,184 USD

Retailer 1
-
$458 USD
Price last confirmed 29 days ago
A
Retailer 2
-
$495 USD
£390 GBP
View
Retailer 3
-
$534 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$592 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$592 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$655 USD
View
B+
Retailer 7
-
$924 USD
View
A
Retailer 8
-
$926 USD
View
A
Retailer 9
-
$982 USD
£773 GBP
View
B+
Retailer 10
-
$1,373 USD
View
B
Retailer 11
-
$1,590 USD
View
Retailer 12
-
$1,902 USD
View
Price last confirmed 30 days ago
B
Retailer 13
-
$2,184 USD
£1,720 GBP
View
Most Expensive
Brilliant Earth
15880620A · Oct 18
$3,380 USD
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from $495 USDSave up to $1,689 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.01ct Oval
$495 USD